N80 HFW套管试制工艺研究  

Research on N80 HFW Casing Trial-production Process

作　　者：付太康 刘洪波[1] 胡海波[1] 李景学[1] 裴玉玲[1] 

机构地区：[1]渤海装备华油钢管有限公司,河北青县062658

出　　处：《焊管》2010年第7期43-46,共4页Welded Pipe and Tube

摘　　要：介绍了采用高频直缝焊接工艺生产的高钢级油井专用管,重点研究了φ139.7 mm(51/2in)N80套管原材料化学成分及试制过程中成型、焊接等工序的工艺参数和质量控制关键点。产品检测结果表明,产品的各项性能指标远高于API 5CT标准,同时也探讨了进一步改进的方向。This article introduced oilfield country tubular goods with high steel grade which adopted HFW process,studied raw material chemical composition of 139.7mm（51/2in） N80 casing,as well as process parameters and key points for controlling quality of forming and welding during trial-production procedure.Detection results indicated that each property index of products is much higher than that of API 5CT standard,at the same time,further improvement direction was discussed.

关 键 词：N80钢 HFW焊管 焊接工艺 冲击韧性 

分 类 号：TG113.25[金属学及工艺—物理冶金]